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ADAPTIVE CAMERA VIEW FOR VIDEO APPLICATIONS

IP.com Disclosure Number: IPCOM000239831D
Publication Date: 2014-Dec-04
Document File: 6 page(s) / 134K

Publishing Venue

The IP.com Prior Art Database

Related People

Yann Joel Prat: AUTHOR [+4]

Abstract

A solution is presented herein to deliver different views of a video stream depending on the screen size of the user device. Depending on the screen size, a subset of this video stream will be displayed on the device. The smaller the screen, the smaller the portion of the complete resolution of the video stream will be used. This solution makes a better use of different size of screens for the same video content.

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ADAPTIVE CAMERA VIEW FOR VIDEO APPLICATIONS

AUTHORS:

Yann Joel Prat Laurent Gardes

 Olivier Lacour Didier De Marrez

CISCO SYSTEMS, INC.

ABSTRACT

    A solution is presented herein to deliver different views of a video stream depending on the screen size of the user device. Depending on the screen size, a subset of this video stream will be displayed on the device. The smaller the screen, the smaller the portion of the complete resolution of the video stream will be used. This solution makes a better use of different size of screens for the same video content.

DETAILED DESCRIPTION

    Development in communication networks allows a greater access to a variety of content. Such content includes video content, including content for live events, video streams from a video platform or communication system, etc. Any device can access this content from almost anywhere.

    However, currently, the type of video is always the same regardless of the size and shape of the screen. While watching a basketball game on a big TV screen is not a problem it becomes less visible when displayed on a smaller screen, such as a tablet or a phone, and ultimately even on smaller screens such as a watch.

1. The Solution Generally

The profusion of screens on various devices allows users to watch video content

on any type of screen. These screens have different sizes, different resolutions and a different readability.

Copyright 2014 Cisco Systems, Inc.

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    In the following description a basketball game will be used as an example only to illustrate these concepts. This can be applied to any content streaming video content.

    Watching a basketball game on a large TV screen is different from watching the same game on a mobile phone or other hand-held device. A wide view of the playing floor on the TV allows one to have a clear view on the action, the player and the ball. On a small screen however, the same video angle becomes difficult to read, and the action becomes difficult to follow because of the size of the screen.

    A solution is presented herein to take into account both the screen size and screen resolution and adapt the video stream by zooming or cutting/cropping of some secondary portions of the video stream to give a better view on the user device. Figure 1 below shows examples of an illustration of the various results for the same scene on different device sizes. This figure shows the benefits of this technology. The action is clearer because it is adapted to the screen size of the chosen device.

Figure 1. Adapted view on different devices.

Copyright 2014 Cisco Systems, Inc.

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Figure 2. Part of the original stream to be shown depending on the device.

    This system can also be used to view the same stream simultaneously on several devices, for example, showing the full view on the TV and getting a closer look at some action on a mobile device. The interest is emphasized if the viewing angle changes on some device due to the choice of the user re...